This Natural profile parameter specifies the search algorithm that is to be used for allocating storage in the Natural buffer pool.
| Possible settings | S |
This indicates that a selection process is to be used for allocating storage. The selection process consists of browsing the whole buffer pool directory and comparing different entries in order to find the most suitable entry. This method was formerly known as Algorithm 1+2. |
|---|---|---|
N |
This indicates that the next available unused or free space is to be used. The search for the next available space is done from a pointer to directory entries which moves in a wrap around fashion. This method may be used in combination with a buffer pool cache. | |
| Default setting | S |
|
| Dynamic specification | yes | This parameter can only be specified dynamically. |
| Specification within session | no |
Notes:
METHOD
subparameter of the BPI profile parameter or the
NTBPI
macro.
BPMETH specification is
converted into the equivalent BPI specification; for
example: BPMETH=S is converted into:
BPI=(TYPE=NAT,SEQ=0,METHOD=S).
BPMETH parameter only applies to the
primary Natural buffer pool (TYPE=NAT,
SEQ=0). In
the case of a global buffer pool, it is ignored. If there is a primary buffer
pool with SEQ=0 in the
Natural
parameter module, only the METHOD setting of
this buffer pool is updated.
BPMETH profile parameter only affects the very first
Natural session which initializes the local buffer pool.
